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Choosing the Right Pond Net

Choosing the Right Pond Net

Choosing the right pond net can be quite bewildering.  Searching for the right pond net, all different sizes, shapes, pricing and often a not so perfect purchase takes place.  Pond H2o has the most comprehensive range of water garden koi fish pond nets in the USA! So, you are at a good place to choose exactly the proper pond net and stop a misinformed purchase.

First decision to be made is what do you want to use the net for? Large to medium sized ponds and small ponds will require different pond nets. To help make the decision of what type net to use, here is a guide to use:

  • Catch fish
  • Clean the pond
  • Retrieve leaves & debris
  • Clean pond bottom
  • Expensive koi nets

Water Garden Koi Fish Pond nets can really be broken into 4 categories

Pond Nets Use

Choosing the Right Pond Net
General pond net or multi-purpose pond nets are used to catch fish, retrieve items and general use, these have a slightly open mesh and can vary in length head size or pricing. Our multi-purpose pond nets are ideal for removing fish or debris from the pond.  Soft netting that wont damage the pond or the fish. Our multi-purpose pond nets are ideal for removing fish or debris from the pond and are easy to keep clean.

Koi Pan Nets Use

Choosing the Right Pond Net

Koi Pan nets are very shallow nets hence the word pan is used. These are not intended to catch fish outright but to guide them into a bowl or koi transport sock to be retrieved. Usually used in koi ponds and are a specialist net for mainly expensive koi and not intended for general use.

Sludge Nets Use 

Choosing the Right Sludge Muck Pond Net
Sludge nets have very fine mesh and made strong to allow for heavy sludge or pond muck, to be retrieved from the bottom of the pond. Pond h2o sludge nets also have a front protector to help stop the front of the net on the bottom of the pond getting damaged. Used while doing general maintenance on your water garden pond.

Skimmer Nets Use


Skimmer nets usually have very fine netting and are typically quite shallow in depth to allow easy use.  They are designed for skimming or removing leaves, pine needles and other debris from water garden ponds and other water features.  Here at Pondh2o, we’ve developed this Light N Easy Skimmer Net with Telescopic 70 Inch Pole, pond skimming net with ergonomically friendly golf club design.  The net head is on an angle making for ease when skimming across the surface of the pond water.  Carefully retrieving unwanted water garden pond debris that may cloud your water. Pond Skimming net is usually light and allows for removal of debris, significantly cutting down on pond maintenance.

Specialist Use Nets

choosing the right pond net

Floating Net Basket 24'' x 24'' x 24'' For Breeding or Quarantine net

Specialist use nets cover items like koi transport socks and floating net baskets that will quarantine or isolate fish.

Choosing the right pond net does not have to be overwhelming.  You just need to take some things into consideration and make the decision based on the task needed.  Pond H2o is here to help!

Finding and Fixing a Pond Water Leak

Finding and Fixing a Pond Water Leak

Finding and fixing a pond water leak can be the worst nightmare for a water garden koi fish pond owner. One day the pond is normal, then the next day the water level as dropped.
Leaks in water garden koi fish ponds can be caused by many different ways, roots pushing through, sharp stones puncturing the liner, had one report of a bear scratching at the liner and ripping it with sharp claws.

So how do you go about finding and fixing a leak in your water garden pond:

  1. Fill the pond back up to the usual level.
  2. Check all fittings, hoses, filters, external pumps, waterfalls, spitter fountains, anything that might be leaking to see if that is the cause.
  3. Wait for the water level to drop and hold that level, this means that below that point is water tight so the leak is on that approximate level, if it carries on and totally drains the pond so leak is on the bottom.
  4. Find the cause and work out if fixable. No point in repairing a leak caused by roots, it will only do it again. If it is fixable good news.
  5. PondH2o sell different types of products that will fix a leaking liner.
  6. All fixing kits will require a clean dry algae free surface so clean the liner.
  7. Patch or infill with adhesive and leave to dry, Some of our gold label products will seal under water to make it even easier.
  8. Refill the pond and wait to see if as worked.

Finding and fixing a Pond Water Leak should not seem overwhelming, by following PondH2o’s simple steps – your pond will be back to normal water levels.

PondH2o Fixing and finding a leak in a pond

Winterize Your Pond

Best Ways To Winterize Your Pond

Winter signals the end of the koi fish water garden pond year and can often be the most challenging season for the pond keeper.  Water freezes cutting off gas exchange or total freezes encasing the residents of the fish pond among many of the scenario’s that have to be handled.  There are two main ways to Winterize your fish pond. We will look at both options.

1. Everything Keeps Running

Ideally fish pond is 24-36 inches deep and located in southern half of the USA.
1. Clean out the pond bottom to make sure the pond is deep as possible and to remove any decaying matter that as built up over the Fall.
2. Cover the pond with pond netting to stop leaves and other debris been allowed into the pond, this is important as not to allow a build up of decaying matter in the bottom of the pond releasing gases that may not be able to escape if a layer of ice develops.
3. Add ice preventative device or aeration to keep the pond surface moving to prevent freezing.

2. Pumps & Filters Are Turned Off

This is more suited for ponds located in the northern states where a hard winter is expected.
1. Clean out the pond bottom to make sure the pond is deep as possible and to remove any decaying matter that as built up over the Fall.
2. Remove the pond pump and Filter, if the filter can not be removed, empty where possible of water and remove parts like the uv clarifer.
3. Blow any buried hose tubing that may be connecting the two with air to remove as much water as possible, when water freezes it expands so could damage the hose.
4. Add an ice preventative device or aeration to keep the pond surface moving to prevent freezing. This is important not to allow the pond to totally freeze so gas exchange can still take place.

Useful Tips

If a pond freezes solid, melt a hole with hot water from a kettle, never crack the ice , the shock waves may injure the fish.  If aeration is used, ensure the bubbler airstone is 6 inches below the surface.  In this way does not drag up warmer water from under the thermocline and cool it down.  Change 25% Of the water and check the water readings with a test kit.

Useful items to purchase:

Floating Pond Thermometer

floating pond thermometer

Wheatgerm based fish food to be used when water is over 50 Degrees constant.

Spring & Fall Bacteria Additive

PondH2o is your one stop for all products needed to winterize your water garden koi fish pond.

New Pond Syndrome

What Is New Pond Syndrome

New Pond Syndrome is just the title used for when a pond is first put in place and goes through the maturing cycle or more exactly the Nitrogen Cycle.  Like anything new that is to support life it needs seeding and kick starting to help it mature.

So what is New Pond Syndrome?

The Nitrogen cycle starts off with Ammonia (NH3) which in turn through the nitrification cycle is Nitrite (No2) this then turns in to Nitrate (No3) which plants love and also single cell algae or greenwater. This process if not completed quickly creates the saying – New Pond Syndrome. It usually takes between 4 to 8 weeks to complete but depends on many factors explained here.

Always make sure you are filtering the pond every two hours through a pond filter that can support the water volume and fish load or you will be forever fighting a losing battle.

How Does New Pond Syndrome effect the Fish

Initially if fish are put in the pond quickly after installed you will see little difference if dechlorinator was used or 24 hours passed from filling the pond. But over days or even weeks ammonia and nitrites will build from fish food, fish waste and start to stress the fish, making them rise to the surface for more oxygen. The reason why this is happening is the good bacteria is not colonizing quickly enough in the filter or gravel to push the pond through the nitrogen cycle.

Five easy steps of helping the cycle along enjoying your pond creation:

  1. While ammonia can be used by some plants, most of the nitrogen taken up by plants is converted by bacteria from ammonia – which is highly toxic to many organisms – into nitrite (NO2-), and then into nitrate (NO3-). This process is called nitrification, and these bacteria are known as nitrifying bacteria. Use a Beneficial Bacteria that will jump start this nitrification process when the pond was first installed.
  2. Make regular water changes of up to 25% to help keep the water conditions good for the fish.
  3. Do not add pond fish quickly, just start with one or two and then add a few more every 14 days or so till the fish load is correct for the filter and pond water volume.
  4. Keep the oxygen levels high in the pond, helps turbocharge the good bacteria. Proper pond aeration products is the key
  5. Buy a good water test kit to test the levels.

Completing proper water testing on your water garden pond will help prevent new pond syndrome.  Read more articles in our information center.




Green Water & String Algae Issues

Green Water & String Algae Issues

Green Water & String Algae Issues are a subject that is one of the most sought after answers in pond keeping,  to why my pond goes green or is choked in string algae?

Always nearly caused by a imbalance in nutrients in the pond caused by many factors which we will go through and explain each.

If you look at a natural pond or lake it may be crystal clear even without any filtration. The reason is a balanced pond which translates into that all the parameters of nitrite, nitrate and phosphate are inline so not causing an algae bloom, on the other end of the spectrum is a unbalanced pond.

Causes of a Unbalanced Pond, Green Water & String Algae Issues

  • High phosphates in the water, resulting in algae having a rich food source in which to thrive.
  • Overfeeding, if the fish have not eaten the food within 5 minutes you are overfeeding.
  • Too much sunlight, algae need sunlight which is why this problem is worst in the Spring as the water warms up and taps into the nutrients available.
  • Too high Fish Load, having too many fish in the pond causes water quality issues of Nitrite turning into Nitrate linked to food and fish waste.
  • Not Enough Plants, pond plants compete to use up the nutrients just like the single cell algae or string algae so add plants, especially one that will add shade like a floating planter.

How To Fix a Green Pond

Break down the food chain is the best option, get rid of the source to get rid of the problem.   Phosphates and Nitrates are at the end of the nitrogen cycle and are why the algae is thriving. Products are available to break the phosphates down, Pondh2o Green Water Goblins been our best seller, totally harmless to all wildlife including frogs and toads.

How To Fix String Algae Issues

String Algae or Filament Algae is basically the same as single cell algae (greenwater). Best to try and get as much out as possible first using a string algae brush.

Then work on the reason why the string algae or blanketweed got going in the first place. Many different products on the market we recommend our Blanketweed Bio’s totally natural and will break down the food chain of the filament algae.



Protecting Against Herons

Protecting Against Herons

The Great Blue Heron (Ardea herodias) is a majestic bird with its long wingspan and bright colors in the wild, but is a major issue in the backyard koi fish pond AKA sushi bar! Protecting against herons is a common question.

Lets take a look at it from a birds point of view, to try to get into the mind of a heron.  The bird is flying 200 foot up looking for dinner, comes across a crystal clear pond, as most ponds are filtered full of brightly colored fish, lands has dinner and moves on.

To combat this, the pond keeper has many options.  Most work well but nothing is guaranteed. This is nature after all.  Pond owners have asked us for years what works.

Great Blue Herons are protected by state and federal law which makes it illegal to capture or kill them without a permit. If the birds become a serious problem, a depredation permit may be obtained through the U.S. Fish and Wildlife Service Migratory Bird Permit Office (

Some useful tips help Protecting Against Herons for your pond and other unwanted visitors

  • Have plenty of surface cover the fish can hide under like lily pads or floating pond plant baskets
  • Herons like to land and walk up to the pond so place natural barriers like small bushes or picket fences
  • Use motion activated outside lights that cover the pond to come on at dawn and dusk
  • Blue Heron Decoy helps to keep Herons away from your pond by using the herons desire to fish alone against them

Heron Decoy

Most popular and a best seller at PondH2o is the Heron Decoy, works best if moved every 2-3 days and removed during mating season in the spring. Works on the principal that herons are solitary feeders.  If a heron see’s one already at a pond it will keep going to the next one.

Pond Predator Barriers

Velda Heron Stop can be quite effective on smaller ponds as herons do not like to jump but walk into the water so get spooked when triggers the bells for added fright.

Many different ones on the pond market, Alligator Heads, Owls, Hawks, Snakes, Bird Eyes, Spinners, Flags to name a few, work by basically spooking the bird. Seem to work best as a program of 3 or 4 different types placed around or on the pond to totally confuse the heron.

Pond Protection Cover Netting

Best option for your water garden koi fish pond protection is pond cover netting.  It can be unsightly, but great in the fall to keep falling leaves and debris from entering the water.

PIR Water Jets

Like the Jet-Spray Fox Repeller can be the most successful as also soaks cats, raccoons, bears etc as well, but needs a permanent water supply and batteries have to be replaced.


Get Your Pond Ready For Fall pond cover nets pond covers netting

Get Your Pond Ready For Fall

With the passing of the seasons your pond transitions throughout, blooming pond plants and active fish in the summer and warmer months need tidying up and its time to get your pond ready for fall.

As air temperatures begin to drop, so do pond water temperatures. During this temperature change, the needs of pond fish are altering as well. It is very important to protect the fish from their changing surroundings including falling debris, pine needles and decaying leaves. Protect your water garden ponds with quality pond cover nets.

In most parts of the United States it’s best to leave fish in the pond during the winter, providing the depth of the pond is adequate (18˝ or deeper) and there is little or no water circulation. 

To get your pond ready for the fall perform these simple easy tasks:

  1. Cut back all pond plants that are starting die off, this will help stop the plants material decaying in the pond.
  2. Add a bacteria like Spring & Fall to help break down sludge and other debris and adds beneficial bacteria.
  3. Place a protection pond cover netting across the pond to stop leaves from entering the pond.
  4. Depending on where you are located you may need to stop the pump and filter if fitted. If so take the pump out of the pond and blow air through all pipes so any freezing does not cause expanding issues with UV quartz sleeves etc.
  5. Add a Ice Preventor, can be a electrical pond heater or  a floating device, this stops the pond surface from totally freezing and maintains gas exchange
  6. Add a thermometer so you know when to stop feeding when water lowers to 50 degrees
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